User manual

94
Limiting the waveform bandwidth
Background Bandwidth limitation puts the input signal into a 20MHz (−3dB) low-pass lter. This
function is useful for cutting off high frequency noise to see the clear waveform
shape.
Procedure 1. Press the Channel key.
CH1
2. Press BW Limit to turn on or off the limitation.
When turned on, the BW indicator appears next to
the Channel indicator in the display.
BW Limit
Off
Example BW Limit Off BW Limit On
Selecting the probe attenuation level
Background The probe can be set to either voltage or current. A signal probe has an
attenuation switch to lower the original DUT signal level to the oscilloscope input
range, if necessary. The probe attenuation selection adjusts the vertical scale
so that the voltage or current level on the display reects the real value, not the
attenuated level.
Procedure 1. Press the Channel key.
CH1